Remotely adjustable intermediate seismic support

An intermediate seismic support system for use in conjunction with a nuclear reactor, comprising:

• a nuclear reactor closure head;
• a plurality of control rod drive mechanisms (CRDMs) projecting upwardly from said nuclear reactor closure head, each of said control rod drive mechanisms including a latch housing within which are respectively disposed control rod drive rods;
• an intermediate seismic support mounted upon each of said control rod drive mechanisms so as to peripherally surround said latch housings;
• and
• means for remotely adjusting each of said intermediate seismic supports relative to one another.

An intermediate seismic support system for use in conjunction with a nuclear reactor, comprising:

• a nuclear reactor closure head;
• a plurality of control rod drive mechanisms (CRDMs) projecting vertically upwardly from said nuclear reactor closure head, each of said control rod drive mechanisms including a latch housing within which are respectively disposed control rod drive rods;
• an intermediate seismic support disposed upon each of said control rod drive mechanisms so as to peripherally surround said latch housings;
• means for remotely installing and removing said intermediate seismic supports upon said control rod drive mechanisms;
• means for remotely adjusting each of said intermediate seismic supports relative to each other;
• and
• a seismic support ring peripherally surrounding the array of intermediate seismic supports mounted upon each of said control rod drive mechanisms and adapted to be fixedly secured to said nuclear reactor closure head so as to rigidify said array of intermediate seismic supports.

An intermediate seismic support system for use in conjunction with a nuclear reactor, comprising:

• a nuclear reactor which includes a closure head;
• a plurality of control rod drive mechanisms (CRDMs) projecting upwardly from said nuclear reactor closure head, each of said control rod drive mechanisms including a latch housing within which are respectively disposed control rod drive rods;
• and
• an intermediate seismic support capable of being remotely installed upon each of said control rod drive mechanisms so as to peripherally surround said latch housings.